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Peter Ivan
Slovakia
Full-time senior programmer
C#, ASP.NET, javascript, C++, VB
Oracle, SQL, SQLCE, SQLite, mySQL
ExtJS, DevExpress, custom framework
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Top Questions
22
votes
What advantages (any?) has water heating via photovoltaic system over solar thermal system?
solar-power
photovoltaics
solar-thermal
asked Feb 19, 2013 at 22:33
sustainability.stackexchange.com
16
votes
Which kind of paper should be recycled and which should be burned?
recycling
heating
paper
asked Jan 31, 2013 at 23:10
sustainability.stackexchange.com
10
votes
What are the Carbon-Nitrogen ratios of common household wastes?
composting
asked Oct 20, 2013 at 22:57
sustainability.stackexchange.com
8
votes
Can chip tuning make a car more fuel-effective?
cars
fuel-efficiency
asked Sep 29, 2013 at 20:19
sustainability.stackexchange.com
7
votes
Is recycling cell batteries (highly) profitable?
recycling
batteries
asked Sep 9, 2014 at 8:18
sustainability.stackexchange.com
5
votes
How does 4-quadrant metering of 3-phase electricity work?
electrical
asked Jan 30, 2013 at 23:29
diy.stackexchange.com
5
votes
Why is there much more liquid draining from compost?
composting
waste-water
asked Sep 9, 2014 at 7:49
sustainability.stackexchange.com
Top Answers
60
Ignore milliseconds when comparing two datetimes
stackoverflow.com
25
Is it feasible to compost in an apartment in a city like New York?
sustainability.stackexchange.com
24
Producing my own energy options in urban area with windows but no roof access?
sustainability.stackexchange.com
16
What's the typical energy usage of automatic light switches?
sustainability.stackexchange.com
15
Estimating the cost of solar panels and return time?
sustainability.stackexchange.com
14
Before drilling a well, how can I determine any water table impact?
sustainability.stackexchange.com
12
Is it economically sensible to install a heat exchanger on my wastewater pipes?
sustainability.stackexchange.com
9
How can I monitor a PV system's performance?
sustainability.stackexchange.com
7
What can I do to give second life to half-drained batteries?
sustainability.stackexchange.com
6
How to aerate compost without turning?
sustainability.stackexchange.com
6
Forcing water circulation in solar hot water installation
sustainability.stackexchange.com
6
Sustainability concerns with digging a well
sustainability.stackexchange.com
5
decimals, javascript vs C#
stackoverflow.com
5
How to get rid of greenfly in roses and grapes without toxic chemicals?
sustainability.stackexchange.com
5
Does turning circuit breakers off cause wear?
diy.stackexchange.com
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